discourse/app/jobs/scheduled/poll_mailbox.rb

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# frozen_string_literal: true
require 'net/pop'
module Jobs
class PollMailbox < ::Jobs::Scheduled
every SiteSetting.pop3_polling_period_mins.minutes
sidekiq_options retry: false
include Email::BuildEmailHelper
def execute(args)
@args = args
poll_pop3 if should_poll?
end
def should_poll?
return false if Rails.env.development? && ENV["POLL_MAILBOX"].nil?
SiteSetting.pop3_polling_enabled?
end
def process_popmail(popmail)
Email::Processor.process!(popmail.pop)
end
POLL_MAILBOX_TIMEOUT_ERROR_KEY = "poll_mailbox_timeout_error_key"
def poll_pop3
pop3 = Net::POP3.new(SiteSetting.pop3_polling_host, SiteSetting.pop3_polling_port)
if SiteSetting.pop3_polling_ssl
if SiteSetting.pop3_polling_openssl_verify
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pop3.enable_ssl(max_version: OpenSSL::SSL::TLS1_2_VERSION)
else
pop3.enable_ssl(OpenSSL::SSL::VERIFY_NONE)
end
end
pop3.start(SiteSetting.pop3_polling_username, SiteSetting.pop3_polling_password) do |pop|
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pop.each_mail do |p|
process_popmail(p)
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p.delete if SiteSetting.pop3_polling_delete_from_server?
end
end
rescue Net::OpenTimeout => e
count = Discourse.redis.incr(POLL_MAILBOX_TIMEOUT_ERROR_KEY).to_i
Discourse.redis.expire(
POLL_MAILBOX_TIMEOUT_ERROR_KEY,
SiteSetting.pop3_polling_period_mins.minutes * 3
) if count == 1
if count > 3
Discourse.redis.del(POLL_MAILBOX_TIMEOUT_ERROR_KEY)
mark_as_errored!
add_admin_dashboard_problem_message('dashboard.poll_pop3_timeout')
Discourse.handle_job_exception(e, error_context(@args, "Connecting to '#{SiteSetting.pop3_polling_host}' for polling emails."))
end
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rescue Net::POPAuthenticationError => e
mark_as_errored!
add_admin_dashboard_problem_message('dashboard.poll_pop3_auth_error')
Discourse.handle_job_exception(e, error_context(@args, "Signing in to poll incoming emails."))
end
POLL_MAILBOX_ERRORS_KEY = "poll_mailbox_errors"
def self.errors_in_past_24_hours
Discourse.redis.zremrangebyscore(POLL_MAILBOX_ERRORS_KEY, 0, 24.hours.ago.to_i)
Discourse.redis.zcard(POLL_MAILBOX_ERRORS_KEY).to_i
end
def mark_as_errored!
now = Time.now.to_i
Discourse.redis.zadd(POLL_MAILBOX_ERRORS_KEY, now, now.to_s)
end
def add_admin_dashboard_problem_message(i18n_key)
AdminDashboardData.add_problem_message(
i18n_key,
SiteSetting.pop3_polling_period_mins.minutes + 5.minutes
)
end
end
end